BRK Smoke & Carbon Monoxide Alarm Hard Wire with Battery Backup
First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
BRK SC7010B AC 120 Volt Combo Smoke/Carbon Monoxide Alarm | NorthEast Electrical
First Alert BRK Hardwired Smoke and Carbon Monoxide Alarm - SC9120LBL